03 Unbending SM Parts PPT

© 2006 PTC

Sheetmetal Design using Pro/ENGINEER Wildfire 3.0

Module 3: Unbending Sheetmetal Parts

Objectives

After completing this module, you will be able to:! Unbend developable surfaces.

! Unbend undevelopable surfaces.

! Add rips to the geometry.

! Create deformation areas.

! Define default fixed geometry for unbend and bend back features.

Unbending Sheetmetal Parts - Overview

Unbending developable surfaces! Using Regular Unbend tool.

Unbending undevelopable surfaces! Using X-sec Driven tool.! Using Transition tool.

Converting to developable surfaces! Adding rips to the geometry.! Creating deformation areas.! Using SMT conversion tool.

Creating a flat pattern feature

Bending the models back to the design state

Unbending Developable Surfaces

Using Regular Unbend Tool! Unbending All.

! Unbending Selected.

Original Model Unbend All

Unbend Select

Unbending Undevelopable Geometry

Using the X-sec driven tool! Selecting a curve.

! Sketching a section.

Unbending a Part Using Select Curve Option

Unbending a Part Using Sketch Curve Option

Unbending Undevelopable Geometry (cont.)

Using the Transition tool

Using the Regular Unbend tool! Using Deformation.

Defining the Transition Area

Part with Transition Unbend

Part with Undevelopable Area

Defining the Deformation Area

Part with Regular Unbend and Deformation

Creating Developable Geometry

! Adding Rips to the geometry.! Creating Deformation Areas.! Using SMT Conversion tool.

Adding Rips to the Geometry

! Regular Rip.

! Edge Rip.

! Surface Rip.

Creating Regular Rip

Creating Edge Rip Creating Surface Rip The Unbent Part

Creating Deformation Areas

!Using the Regular Unbend tool.

!Using the Deform Area tool." Defining it before unbending.

Selecting the Deform Area in the Regular Unbend Tool

Part with Undesirable Unbent

Part with Desirable UnbentSketching the Deform Area Using the Defined Deform Area

Undevelopable Area

Using SMT Conversion Tool

! Point relief.

! Edge rip.

! Rip connect.

! Edge bend.

! Corner relief.

Fixed Surface

Creating a Flat Pattern

Flat Pattern

Selecting the Wall to Remain Fixed

Flat Pattern of the Part Flat Pattern as the Last Feature

Creating a Bend Back Feature

! Bending back selected walls of the model.

! Bending the entire model.

Bend Back Select Bend Back All

Unbent PartOriginal Part

Demonstrations

! Unbending the Toaster Body Part.

! Unbending the Crumbs Tray.

! Creating a developable part.

Summary

After completing this module, you will be able to:! Unbend developable surfaces.

! Unbend undevelopable surfaces.

! Add rips to the geometry.

! Create deformation areas.

! Define default fixed geometry for unbend and bend back features.